San Marcos Extension DIRECTIONS ENROLL After School Program Pre-Kindergarten After School Program San Marcos Extension After School Program August 24, 2020 – May 28, 2021 3:00 PM – 6:00 PM $150 Monthly Tuition September 8, 2020 – June 9, 2021 3:00 PM – 6:00 PM $150 Monthly Tuition Community Meet-Up Information Coming Soon. Calendar BGC Calendar (2)